1 #ifndef __PERF_SYMBOL 2 #define __PERF_SYMBOL 1 3 4 #include <linux/types.h> 5 #include <stdbool.h> 6 #include <stdint.h> 7 #include "map.h" 8 #include "../perf.h" 9 #include <linux/list.h> 10 #include <linux/rbtree.h> 11 #include <stdio.h> 12 13 #ifdef HAVE_CPLUS_DEMANGLE 14 extern char *cplus_demangle(const char *, int); 15 16 static inline char *bfd_demangle(void __used *v, const char *c, int i) 17 { 18 return cplus_demangle(c, i); 19 } 20 #else 21 #ifdef NO_DEMANGLE 22 static inline char *bfd_demangle(void __used *v, const char __used *c, 23 int __used i) 24 { 25 return NULL; 26 } 27 #else 28 #include <bfd.h> 29 #endif 30 #endif 31 32 int hex2u64(const char *ptr, u64 *val); 33 char *strxfrchar(char *s, char from, char to); 34 35 /* 36 * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP; 37 * for newer versions we can use mmap to reduce memory usage: 38 */ 39 #ifdef LIBELF_NO_MMAP 40 # define PERF_ELF_C_READ_MMAP ELF_C_READ 41 #else 42 # define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP 43 #endif 44 45 #ifndef DMGL_PARAMS 46 #define DMGL_PARAMS (1 << 0) /* Include function args */ 47 #define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ 48 #endif 49 50 #define BUILD_ID_SIZE 20 51 52 /** struct symbol - symtab entry 53 * 54 * @ignore - resolvable but tools ignore it (e.g. idle routines) 55 */ 56 struct symbol { 57 struct rb_node rb_node; 58 u64 start; 59 u64 end; 60 u16 namelen; 61 u8 binding; 62 bool ignore; 63 char name[0]; 64 }; 65 66 void symbol__delete(struct symbol *sym); 67 68 struct strlist; 69 70 struct symbol_conf { 71 unsigned short priv_size; 72 unsigned short nr_events; 73 bool try_vmlinux_path, 74 show_kernel_path, 75 use_modules, 76 sort_by_name, 77 show_nr_samples, 78 show_total_period, 79 use_callchain, 80 exclude_other, 81 show_cpu_utilization, 82 initialized, 83 kptr_restrict, 84 annotate_asm_raw, 85 annotate_src; 86 const char *vmlinux_name, 87 *kallsyms_name, 88 *source_prefix, 89 *field_sep; 90 const char *default_guest_vmlinux_name, 91 *default_guest_kallsyms, 92 *default_guest_modules; 93 const char *guestmount; 94 const char *dso_list_str, 95 *comm_list_str, 96 *sym_list_str, 97 *col_width_list_str; 98 struct strlist *dso_list, 99 *comm_list, 100 *sym_list, 101 *dso_from_list, 102 *dso_to_list, 103 *sym_from_list, 104 *sym_to_list; 105 const char *symfs; 106 }; 107 108 extern struct symbol_conf symbol_conf; 109 110 static inline void *symbol__priv(struct symbol *sym) 111 { 112 return ((void *)sym) - symbol_conf.priv_size; 113 } 114 115 struct ref_reloc_sym { 116 const char *name; 117 u64 addr; 118 u64 unrelocated_addr; 119 }; 120 121 struct map_symbol { 122 struct map *map; 123 struct symbol *sym; 124 bool unfolded; 125 bool has_children; 126 }; 127 128 struct addr_map_symbol { 129 struct map *map; 130 struct symbol *sym; 131 u64 addr; 132 u64 al_addr; 133 }; 134 135 struct branch_info { 136 struct addr_map_symbol from; 137 struct addr_map_symbol to; 138 struct branch_flags flags; 139 }; 140 141 struct addr_location { 142 struct thread *thread; 143 struct map *map; 144 struct symbol *sym; 145 u64 addr; 146 char level; 147 bool filtered; 148 u8 cpumode; 149 s32 cpu; 150 }; 151 152 enum dso_kernel_type { 153 DSO_TYPE_USER = 0, 154 DSO_TYPE_KERNEL, 155 DSO_TYPE_GUEST_KERNEL 156 }; 157 158 struct dso { 159 struct list_head node; 160 struct rb_root symbols[MAP__NR_TYPES]; 161 struct rb_root symbol_names[MAP__NR_TYPES]; 162 enum dso_kernel_type kernel; 163 u8 adjust_symbols:1; 164 u8 has_build_id:1; 165 u8 hit:1; 166 u8 annotate_warned:1; 167 u8 sname_alloc:1; 168 u8 lname_alloc:1; 169 unsigned char symtab_type; 170 u8 sorted_by_name; 171 u8 loaded; 172 u8 build_id[BUILD_ID_SIZE]; 173 const char *short_name; 174 char *long_name; 175 u16 long_name_len; 176 u16 short_name_len; 177 char name[0]; 178 }; 179 180 struct dso *dso__new(const char *name); 181 void dso__delete(struct dso *dso); 182 183 int dso__name_len(const struct dso *dso); 184 185 bool dso__loaded(const struct dso *dso, enum map_type type); 186 bool dso__sorted_by_name(const struct dso *dso, enum map_type type); 187 188 static inline void dso__set_loaded(struct dso *dso, enum map_type type) 189 { 190 dso->loaded |= (1 << type); 191 } 192 193 void dso__sort_by_name(struct dso *dso, enum map_type type); 194 195 struct dso *__dsos__findnew(struct list_head *head, const char *name); 196 197 int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter); 198 int dso__load_vmlinux(struct dso *dso, struct map *map, 199 const char *vmlinux, symbol_filter_t filter); 200 int dso__load_vmlinux_path(struct dso *dso, struct map *map, 201 symbol_filter_t filter); 202 int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map, 203 symbol_filter_t filter); 204 int machine__load_kallsyms(struct machine *machine, const char *filename, 205 enum map_type type, symbol_filter_t filter); 206 int machine__load_vmlinux_path(struct machine *machine, enum map_type type, 207 symbol_filter_t filter); 208 209 size_t __dsos__fprintf(struct list_head *head, FILE *fp); 210 211 size_t machine__fprintf_dsos_buildid(struct machine *machine, 212 FILE *fp, bool with_hits); 213 size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp); 214 size_t machines__fprintf_dsos_buildid(struct rb_root *machines, 215 FILE *fp, bool with_hits); 216 size_t dso__fprintf_buildid(struct dso *dso, FILE *fp); 217 size_t dso__fprintf_symbols_by_name(struct dso *dso, 218 enum map_type type, FILE *fp); 219 size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp); 220 221 enum symtab_type { 222 SYMTAB__KALLSYMS = 0, 223 SYMTAB__GUEST_KALLSYMS, 224 SYMTAB__JAVA_JIT, 225 SYMTAB__BUILD_ID_CACHE, 226 SYMTAB__FEDORA_DEBUGINFO, 227 SYMTAB__UBUNTU_DEBUGINFO, 228 SYMTAB__BUILDID_DEBUGINFO, 229 SYMTAB__SYSTEM_PATH_DSO, 230 SYMTAB__GUEST_KMODULE, 231 SYMTAB__SYSTEM_PATH_KMODULE, 232 SYMTAB__NOT_FOUND, 233 }; 234 235 char dso__symtab_origin(const struct dso *dso); 236 void dso__set_long_name(struct dso *dso, char *name); 237 void dso__set_build_id(struct dso *dso, void *build_id); 238 void dso__read_running_kernel_build_id(struct dso *dso, 239 struct machine *machine); 240 struct symbol *dso__find_symbol(struct dso *dso, enum map_type type, 241 u64 addr); 242 struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, 243 const char *name); 244 245 int filename__read_build_id(const char *filename, void *bf, size_t size); 246 int sysfs__read_build_id(const char *filename, void *bf, size_t size); 247 bool __dsos__read_build_ids(struct list_head *head, bool with_hits); 248 int build_id__sprintf(const u8 *build_id, int len, char *bf); 249 int kallsyms__parse(const char *filename, void *arg, 250 int (*process_symbol)(void *arg, const char *name, 251 char type, u64 start, u64 end)); 252 253 void machine__destroy_kernel_maps(struct machine *machine); 254 int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel); 255 int machine__create_kernel_maps(struct machine *machine); 256 257 int machines__create_kernel_maps(struct rb_root *machines, pid_t pid); 258 int machines__create_guest_kernel_maps(struct rb_root *machines); 259 void machines__destroy_guest_kernel_maps(struct rb_root *machines); 260 261 int symbol__init(void); 262 void symbol__exit(void); 263 size_t symbol__fprintf_symname_offs(const struct symbol *sym, 264 const struct addr_location *al, FILE *fp); 265 size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp); 266 bool symbol_type__is_a(char symbol_type, enum map_type map_type); 267 268 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp); 269 270 #endif /* __PERF_SYMBOL */ 271